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CompTIA N10-008 certification exam is a valuable certification for IT professionals who want to demonstrate their skills and knowledge in the field of networking. CompTIA Network+ Certification Exam certification is recognized globally and is a requirement for many IT jobs. N10-008 exam is comprehensive and covers all aspects of networking, including network design, configuration, and troubleshooting. CompTIA Network+ Certification Exam certification is vendor-neutral, making it a valuable certification for IT professionals who work with multiple vendors and technologies.
NEW QUESTION # 170
A network administrator is implementing process changes based on recommendations following a recent penetration test. The testers used a method to gain access to the network that involved exploiting a publicly available and fixed remote code execution vulnerability in the VPN appliance.
Which of the following should the administrator do to BEST prevent this from happening again?
- A. Routinely upgrade all network equipment firmware.
- B. Implement robust ACLs with explicit deny-all entries.
- C. Change default passwords on internet-facing hardware.
- D. Create private VLANs for management plane traffic.
Answer: A
NEW QUESTION # 171
A firewall administrator is implementing a rule that directs HTTP traffic to an internal server listening on a non-standard socket Which of the following types of rules is the administrator implementing?
- A. NAT
- B. STP
- C. ARP
- D. PAT
- E. SNAT
Answer: E
NEW QUESTION # 172
An organization has a factory automation solution that requires accurate timing between devices.
Which of the following should the network administrator implement?
- A. NTP
- B. NTS
- C. PTP
- D. DoT
Answer: C
NEW QUESTION # 173
Which of the following is MOST likely to generate significant East-West traffic in a datacenter?
- A. A download of navigation data to a portable device for offline access
- B. A query from an IoT device to a cloud-hosted server for a firmware update
- C. A duplication of a hosted virtual server to another physical server for redundancy
- D. A backup of a large video presentation to cloud storage for archival purposes
Answer: C
Explanation:
East-West traffic refers to data flows between servers or devices within the same datacenter. When a hosted virtual server is duplicated to another physical server for redundancy, it generates significant East-West traffic as the data is replicated between the two servers. Reference:
Network+ N10-008 Objectives: 3.3 Given a scenario, implement secure network architecture concepts.
NEW QUESTION # 174
A network administrator is installing a new server in the data center. The administrator is concerned the amount of traffic generated will exceed 1GB. and higher-throughput NiCs are not available for installation.
Which of the following is the BEST solution for this issue?
- A. Configure port mirroring to send traffic to another server.
- B. Install an additional NIC and configure LACP.
- C. Install a SSD to decrease data processing time.
- D. Remove some of the applications from the server.
- E. Configure the NIC to use fun duplex
Answer: B
Explanation:
* A NIC is a network interface card that enables a device to connect to a network using a wired or wireless medium. A NIC has a specific speed and bandwidth capacity that determines how much data it can transmit and receive per second. A higher-throughput NIC can handle more traffic than a lower-throughput NIC.
* LACP is a link aggregation protocol that allows multiple physical links to be combined into a single logical link. LACP can increase the bandwidth, reliability, and load balancing of a network connection by distributing traffic across multiple links. LACP is also known as IEEE 802.3ad or port channeling.
* A network administrator can install an additional NIC on a server and configure LACP to combine the two NICs into one logical link. This can effectively double the throughput of the server's network connection and allow it to handle more traffic without exceeding 1GB. This is the best solution for this issue because it improves the performance and availability of the server without affecting its functionality or requiring additional hardware.
* The other options are not the best solutions for this issue because they either do not increase the throughput of the server's network connection, or they have negative impacts on the server's functionality or performance. Removing some of the applications from the server may reduce the traffic generated, but it may also affect the server's role and service delivery. Configuring the NIC to use full duplex may improve the efficiency of the network communication, but it does not increase the bandwidth capacity of the NIC. Configuring port mirroring to send traffic to another server may help with monitoring or troubleshooting, but it does not reduce the traffic load on the original server.
Installing a SSD may decrease the data processing time of the server, but it does not affect the network throughput of the server. References:
* CompTIA Network+ N10-008 Study Guide, Chapter 2: Network Devices and Technologies, Section
2.2: Network Device Functions and Features, Subsection: Network Interface Cards, pp. 72-74.
* CompTIA Network+ N10-008 Study Guide, Chapter 2: Network Devices and Technologies, Section
2.3: Network Cabling and Connectors, Subsection: Link Aggregation, pp. 87-88.
* Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 2.2: Network Devices, Subsection: Network Interface Cards, p. 28.
* Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 2.3: Network Cabling and Connectors, Subsection: Link Aggregation, p. 31.
NEW QUESTION # 175
An attacker is attempting to find the password to a network by inputting common words and phrases in plaintext to the password prompt. Which of the following attack types BEST describes this action?
- A. Pass-the-hash attack
- B. Rainbow table attack
- C. Brute-force attack
- D. Dictionary attack
Answer: D
Explanation:
Explanation
The attacker attempting to find the password to a network by inputting common words and phrases in plaintext to the password prompt is using a dictionary attack. References: CompTIA Network+ Certification Study Guide, Chapter 6: Network Attacks and Mitigation.
NEW QUESTION # 176
An engineer needs to verity the external record tor SMTP traffic. The engineer logged in to the server and entered the nslookup command. Which of the following commands should the engineer send before entering the DNS name?
- A. set querytype=Mx
- B. is -d company-mail.com
- C. set domain=company.mail.com
- D. set type=A
Answer: A
Explanation:
* The question asks about the command that an engineer should send before entering the DNS name to verify the external record for SMTP traffic, which is the mail exchange (MX) record.
* The MX record is a type of DNS resource record that specifies the mail server responsible for accepting email messages on behalf of a domain name.
* To query the MX record using the nslookup command, the engineer should first set the query type to MX using the command set querytype=Mx or set type=Mx.
* The other options are not correct, as they do not set the query type to MX:
* set type=A sets the query type to A, which is the address record that maps a domain name to an IP address.
* ls -d company-mail.com lists all DNS records for the domain company-mail.com, but does not specify the query type.
* set domain=company.mail.com sets the default domain name to company.mail.com, but does not specify the query type. References:
* CompTIA Network+ N10-008 Study Guide, Chapter 3, Section 3.4, DNS Concepts, page 1441
* Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 3.4, DNS Concepts, page 242
* Professor Messer's CompTIA N10-008 Network+ Training Course, Video 3.4 - DNS Concepts, 9:00 -
10:003
NEW QUESTION # 177
Which of the following connector types would have the MOST flexibility?
- A. BNC
- B. SFP
- C. RJ45
- D. LC
Answer: B
Explanation:
SFP (Small Form-factor Pluggable) is a connector type that has the most flexibility. It is a hot-swappable transceiver that can support different speeds, distances, and media types depending on the module inserted. It can be used for both copper and fiber connections and supports various protocols such as Ethernet, Fibre Channel, and SONET. Reference: https://www.fs.com/what-is-sfp-transceiver-aid-11.html
NEW QUESTION # 178
A senior administrator has been directed to incorporate AAA services within a domain environment for regulatory compliance purposes. Which of the following standards will enable the use of an AAA server in a domain environment?
- A. 802.1X
- B. 802.11h
- C. 802.1Q
- D. 802.3bt
Answer: A
Explanation:
802.1X is a standard that enables the use of an AAA server in a domain environment by providing port-based network access control. 802.1X authenticates users or devices before granting them access to the network resources, and can also authorize them based on their roles or policies. 802.1X can work with different AAA protocols, such as RADIUS or TACACS+, to communicate with the AAA server.
Reference:
CompTIA Network+ N10-008 Certification Study Guide, page 211
CompTIA Network+ N10-008 Cert Guide, Deluxe Edition, page 382
Configuring AAA Services - Cisco3
NEW QUESTION # 179
A user is trying to map a network fileshare to a local drive and needs to open a firewall port for this traffic. Which of the following ports needs to be opened to accomplish this task?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
Port 445 is used for SMB (Server Message Block), which is the protocol that allows file sharing over a network. When mapping a network file share to a local drive, SMB traffic flows over TCP port 445, so this port needs to be opened in the firewall.
NEW QUESTION # 180
Which of the following network management methods is able to perform various automated tasks?
- A. GUI
- B. CLI
- C. SSH
- D. API
Answer: D
Explanation:
API stands for Application Programming Interface, which is a set of rules and protocols that allow different software applications to communicate and exchange dat a. Network automation can use APIs to perform various automated tasks, such as configuring devices, provisioning resources, monitoring performance, and optimizing networks. APIs can enable network automation to interact with different network elements, platforms, and services, regardless of their vendor, technology, or architecture.
The other options are not correct because:
SSH stands for Secure Shell, which is a protocol that allows secure remote access to a network device. SSH can be used to manually configure and manage a network device, but it does not automate network tasks by itself.
CLI stands for Command-Line Interface, which is a text-based interface that allows users to interact with a network device by typing commands. CLI can be used to manually configure and manage a network device, but it does not automate network tasks by itself.
GUI stands for Graphical User Interface, which is a visual interface that allows users to interact with a network device by using icons, menus, and windows. GUI can be used to manually configure and manage a network device, but it does not automate network tasks by itself.
NEW QUESTION # 181
The following configuration is applied to a DHCP server connected to a VPN concentrator:
There are 300 non-concurrent sales representatives who log in for one hour a day to upload reports, and 252 of these representatives are able to connect to the VPN without any Issues. The remaining sales representatives cannot connect to the VPN over the course of the day. Which of the following can be done to resolve the issue without utilizing additional resources?
- A. Reboot the DHCP server
- B. Decrease the lease duration
- C. Configure a new router
- D. Install a new VPN concentrator
Answer: B
NEW QUESTION # 182
A technician uses a badge to enter a security checkpoint on a corporate campus. An unknown individual quickly walks in behind the technician without speaking. Which of the following types of attacks did the technician experience?
- A. On-path
- B. Evil twin
- C. Piggybacking
- D. Tailgating
Answer: D
Explanation:
Explanation
Tailgating is a type of physical security attack where an unauthorized person follows an authorized person into a restricted area without their consent or knowledge. Tailgating can allow an attacker to bypass security measures and gain access to sensitive information or resources. In this scenario, the technician experienced tailgating when the unknown individual walked in behind the technician without speaking. Piggybacking is similar to tailgating, but it involves the consent or cooperation of the authorized person. Evil twin is a type of wireless network attack where an attacker sets up a rogue access point that mimics a legitimate one. On-path is a type of network attack where an attacker intercepts and modifies traffic between two parties.
References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 3.2: Given a scenario, use appropriate network hardening techniques.
NEW QUESTION # 183
An IT director is setting up new disaster and HA policies for a company. Limited downtime is critical to operations. To meet corporate requirements, the director set up two different datacenters across the country that will stay current on data and applications. In the event of an outage, the company can immediately switch from one datacenter to another. Which of the following does this BEST describe?
- A. A warm site
- B. Data mirroring
- C. Multipathing
- D. Load balancing
- E. A hot site
Answer: E
NEW QUESTION # 184
An IT technician successfully connects to the corporate wireless network at a hank. While performing some tests, the technician observes that the physical address of the DHCp server has changed even though the network connection has not been lost. Which of the following would BEST explain this change?
- A. Rogue server
- B. Server upgrade
- C. Scope exhaustion
- D. Duplicate IP address
Answer: A
Explanation:
Explanation
A rogue server is a DHCP server on a network that is not under the administrative control of the network staff
1. It may provide incorrect IP addresses or other network configuration information to devices on the network, causing them to lose connectivity or be vulnerable to attacks2. The physical address of the DHCP server may change if a rogue server takes over the role of assigning IP addresses to devices on the network. This can be detected by monitoring DHCP traffic or using tools such as RogueChecker
NEW QUESTION # 185
A network administrator is investigating a performance issue on a dual-link connection - VPN and MPLS - to a partner network. The MPLS is the primary path, and the VPN is used as a backup.
While communicating, the delay is measured at 18ms, which is higher than the 6ms expected when the MPLS link is operational but lower than the 30ms expected for the VPN connection.
Which of the following will MOST likely point to the root cause of the issue?
- A. Running iPerf on both sides to confirm the delay that is measured is accurate
- B. Checking for an incorrect VLAN assignment affecting the MPLS traffic
- C. Checking on the partner network for a missing route pointing to the VPN connection
- D. Checking the routing tables on both sides to ensure there is no asymmetric routing
Answer: D
NEW QUESTION # 186
The network administrator is informed that a user's email password is frequently hacked by brute-force programs. Which of the following policies should the network administrator implements to BEST mitigate this issue? (Choose two.)
- A. Geofencing
- B. Role-based access
- C. Complex passwords
- D. Two-factor authentication
- E. Explicit deny
- F. Captive portal
Answer: C,D
Explanation:
Explanation
Two-factor authentication (2FA) is a method of verifying a user's identity by requiring two pieces of evidence, such as something the user knows (e.g., a password) and something the user has (e.g., a token or a smartphone). 2FA adds an extra layer of security that makes it harder for hackers to access a user's account by brute-force programs. Complex passwords are passwords that are long, random, and use a combination of uppercase and lowercase letters, numbers, and symbols. Complex passwords are more resistant to brute-force attacks than simple or common passwords. References:
https://partners.comptia.org/docs/default-source/resources/comptia-network-n10-008-exam-objectives-(2-0),
https://www.csoonline.com/article/3225913/what-is-two-factor-authentication-2fa-how-to-enable-it-and-why-yo
https://www.howtogeek.com/195430/how-to-create-a-strong-password-and-remember-it/
NEW QUESTION # 187
A client who shares office space and an IT closet with another company recently reported connectivity issues throughout the network. Multiple third-party vendors regularly perform on-site maintenance in the shared IT closet. Which of the following security techniques would BEST secure the physical networking equipment?
- A. Disabling unneeded switchports
- B. Configuring an access control list
- C. Changing the default passwords
- D. Implementing role-based access
Answer: D
Explanation:
Role-based access is a security technique that assigns permissions and privileges to users or groups based on their roles or functions within an organization. Role-based access can help secure the physical networking equipment by limiting who can access, modify, or manage the devices in the shared IT closet. Only authorized personnel with a valid role and credentials should be able to access the networking equipment. Disabling unneeded switchports is a security technique that prevents unauthorized devices from connecting to the network by turning off unused ports on a switch. Changing the default passwords is a security technique that prevents unauthorized access to network devices by replacing the factory-set passwords with strong and unique ones. Configuring an access control list is a security technique that filters network traffic by allowing or denying packets based on criteria such as source and destination IP addresses, ports, or protocols.
References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 3.2: Given a scenario, use appropriate network hardening techniques.
NEW QUESTION # 188
Which of the following is conducted frequently to maintain an updated list of a system's weaknesses?
- A. Risk assessment
- B. Vulnerability scan
- C. Penetration test
- D. Posture assessment
Answer: B
NEW QUESTION # 189
A company hired a technician to find all the devices connected within a network. Which of the following software tools would BEST assist the technician in completing this task?
- A. NetFlow analyzer
- B. Port scanner
- C. Terminal emulator
- D. IP scanner
Answer: D
Explanation:
Explanation
To find all devices connected within a network, a technician can use an IP scanner. An IP scanner sends a ping request to all IP addresses within a specified range and then identifies the active devices that respond to the request.
NEW QUESTION # 190
A network device needs to discover a server that can provide it with an IPv4 address. Which of the following does the device need to send the request to?
- A. Broadcast address
- B. Link local address
- C. Unicast address
- D. Default gateway
Answer: A
Explanation:
Explanation
The DHCP client sends broadcast request packets to the network; the DHCP servers respond with broadcast packets that offer IP parameters, such as an IP address for the client. After the client chooses the IP parameters, communication between the client and server is by unicast packets.
"When a DHCP client boots up, it automatically sends out a DHCP Discover UDP datagram to the broadcast address, 255.255.255.255. This DHCP Discover message asks "Are there any DHCP servers out there?" The client can't send unicast traffic yet, as it doesn't have a valid IP address that can be used."
NEW QUESTION # 191
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